Efficient High-power Laser Diode Temperature Control System

At present, semiconductor lasers are widely used in scientific research, defense industry and other industries. When the LD for precision instruments, self-generated heat LD a serious impact on the output characteristics (such as LD output wavelength with temperature drift) which in turn will affect the accuracy of equipment and service life, this time on the need to change the temperature of LD strictly Control. LD temperature due to the uncertainty of the mathematical model (LD temperature with LD into the current size of the change) and temperature control systems require higher precision, the traditional method of temperature control difficult to achieve. As a result, the system uses Wavelet analysis and digital PID parameters to adjust the combination of adaptive control algorithm.The main contents of this issue is how to study high-power semiconductor lasers for high-precision temperature control, research from the semiconductor laser temperature control system based on its significance, such as wavelength output, output power, the life principle and analyzed at the same time analysis of the Domestic and foreign semiconductor laser temperature control technology and product development and application of digital PID temperature control of laser theory of theoretical analysis. Subject to the laser diode temperature control system is optimized software algorithms, the combination of Lagrange algorithm makes the implementation process more efficient and scientific. The laser diode temperature control system of the implementing agencies to respond to the dynamic speed and stability of the effect of temperature control system and high precision, is a better control of LD temperature control system of intelligent, but also for the LD temperature control provides a good Solution.